CN210604475U - Heat conductivity coefficient testing device - Google Patents
Heat conductivity coefficient testing device Download PDFInfo
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- CN210604475U CN210604475U CN201921527607.XU CN201921527607U CN210604475U CN 210604475 U CN210604475 U CN 210604475U CN 201921527607 U CN201921527607 U CN 201921527607U CN 210604475 U CN210604475 U CN 210604475U
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Abstract
The utility model relates to a heat conductivity coefficient testing device, which comprises a base, a bottom plate arranged on the base, a refrigerator arranged on one end of the bottom plate, and a cooling box arranged on the right side of the refrigerator, wherein the refrigerator is connected with the cooling box through a gas pipe; the refrigerator comprises a base plate, a cooling box, a heating box and a clamping assembly, wherein the base plate is provided with a guide rail, the cooling box and the heating box are movably connected with the guide rail, the clamping assembly is fixedly connected with the guide rail, a first moving assembly is arranged at a position, close to a refrigerator, on the base plate, and a second moving assembly is arranged at a position, close to the heating box, on the base plate. The utility model discloses set up cooler bin and heating cabinet, will await measuring the sample and arrange in between heat source and the low temperature refrigerating plant, accessible temperature gradient method calculates the coefficient of heat conductivity of material, makes measured data more accurate, has reduced workman's intensity of labour, has improved measurement of efficiency.
Description
Technical Field
The utility model relates to a building materials test field, concretely relates to coefficient of heat conductivity testing arrangement.
Background
The building material comprises wall material, wood plate material, glass material and the like, the performance of the building material of different raw materials is different according to different production processes, the heat conductivity coefficient of the building material is used as one of important indexes for measuring the heat insulation performance of the product, and the influence of the heat conductivity coefficient on the building energy conservation is very critical. At present, the laser flash method is adopted to test the heat conductivity coefficient of the building material on the construction site mostly, but the laser flash method is used for testing the thermal diffusivity, is not suitable for multilayer structures, coatings, foams, anisotropic materials and the like, and in addition, the laser flash method also needs to measure the density by other methods to be converted into the heat conductivity coefficient, so that the calculation is complex, time and labor are wasted, the source of errors is increased, and the test cost is greatly improved. A few people also obtain the heat conductivity coefficient by directly heating one end of the building material and detecting the temperature from the other side, so that the external influence factors are large, the testing accuracy is low, time and labor are wasted, and a large amount of labor is wasted.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a coefficient of heat conductivity testing arrangement.
The utility model discloses a following scheme realizes:
a heat conductivity coefficient testing device comprises a base, a bottom plate arranged on the base, a refrigerator which is arranged on the left side of the upper end face of the bottom plate and close to the end part and used for simulating a low-temperature environment, and a cooling box arranged on the right side of the refrigerator, wherein the refrigerator is connected with the cooling box through a gas pipe; the refrigerator comprises a base plate, a cooling box, a heating box and a clamping assembly, wherein the base plate is provided with a guide rail, the cooling box and the heating box are movably connected with the guide rail, the clamping assembly is fixedly connected with the base plate, a first moving assembly used for driving the cooling box to move along the guide rail is arranged at a position, close to a refrigerator, on the base plate, and a second moving assembly used for driving the heating box to move along the guide rail is arranged at a position, close to the heating box, on the base plate.
Furthermore, the first moving assembly comprises a first air cylinder arranged on the base, a first push block connected with a piston rod of the first air cylinder, and a first connecting block arranged on the first push block, and the first connecting block is fixedly connected with the cooling box; the second moving assembly comprises a second air cylinder arranged on the base, a second push block connected with a piston rod of the second air cylinder, and a second connecting block arranged on the second push block, and the second connecting block is fixedly connected with the heating box.
Furthermore, the heating box inner wall on be provided with the heating member that is used for heating air.
Furthermore, the heating element is a heating pipe.
Furthermore, a plurality of temperature sensors are arranged in the cooling box and the heating box.
Furthermore, the openings of the cooling box and the heating box are provided with sealing rings for sealing.
Furthermore, a plurality of ventilation holes for ventilation are arranged on one side of the top of the cooling box, which is far away from the opening, and one side of the heating box, which is far away from the opening.
Furthermore, the clamping assembly comprises a vertical plate arranged on the bottom plate and a threaded sleeve arranged on the vertical plate, a rectangular through hole is formed in the vertical plate, a rectangular cavity is formed in the position, above the rectangular through hole, of the vertical plate, a pushing block is movably arranged in the cavity, a screw penetrates through the threaded sleeve and is rotatably connected with the pushing block, and a handle is arranged at the top of the screw.
Contrast prior art, the utility model discloses following beneficial effect has:
the utility model is provided with the cooling box and the heating box, a sample to be measured is arranged between the heat source and the low-temperature refrigerating device, when the temperature distribution is stable, the temperature data is measured in real time through a plurality of temperature sensors, and the heat conductivity coefficient of the material is calculated according to the parameters of measuring the heat flow and the temperature gradient flowing through the piece to be measured; meanwhile, the arranged first moving assembly and the second moving assembly are matched with the cooling box and the sealing ring at the opening of the heating box, so that the influence caused by the temperature difference of the environment can be effectively prevented, the measured data is more accurate, the labor intensity of workers is reduced, and the measuring efficiency is improved.
Drawings
Fig. 1 is a schematic view of an overall structure provided by the present invention.
Fig. 2 is a partial cross-sectional view of the present invention.
Fig. 3 is a side view of the center clamping assembly of the present invention.
Detailed Description
To facilitate understanding of the present invention for those skilled in the art, the present invention will be described in further detail with reference to the following detailed description and accompanying drawings.
Referring to fig. 1 to 3, the utility model provides a heat conductivity testing device, including base 1, bottom plate 21 of setting on base 1, set up refrigerator 32 that is used for simulating low temperature environment that is close to tip department in bottom plate 21 up end left side, set up cooling box 31 on the refrigerator right side, refrigerator 32 and cooling box 31 between be connected through a gas-supply pipe 33, the right side of cooling box 31 is provided with clamping subassembly 5 that is used for clamping the piece that awaits measuring, the right side of clamping subassembly 5 is provided with heating cabinet 41 that is used for simulating high temperature environment, the side of cooling box 31 towards clamping subassembly 5 is the opening, the side of heating cabinet 41 towards clamping subassembly 5 is the opening, be provided with the heating member 42 that is used for heating air on the heating cabinet 41 inner wall, heating member 42 can be the heating pipe when specifically implementing; the clamping assembly 5 comprises a vertical plate 51 arranged on the bottom plate 21 and a threaded sleeve 53 arranged on the vertical plate 51, a rectangular through hole 52 is formed in the vertical plate 51, a rectangular cavity is formed in the vertical plate 51 and located above the rectangular through hole 52, a push block 56 is movably arranged in the cavity, a screw 54 penetrates through the threaded sleeve 53 and is rotatably connected with the push block 56, threads opposite to the screw 54 are arranged on the push block 56, a handle 55 is arranged at the top of the screw 54, the rectangular cavity is slightly larger than the push block 56, during specific operation, a to-be-tested piece after sample preparation is arranged at the rectangular through hole and then the handle 55 is rotated, the push block moves downwards under the action of the screw to fix the to-be-tested piece, and the rectangular through hole is filled with the to-be-tested piece and the push block to play a role in sealing.
The bottom plate 21 is provided with a guide rail 22, the cooling box 31 and the heating box 41 are movably connected with the guide rail 22, the clamping assembly 5 is fixedly connected with the bottom plate, a first moving assembly 7 for driving the cooling box to move along the guide rail is arranged on the bottom plate 21 close to the refrigerator 32, a second moving assembly 8 for driving the heating box to move along the guide rail is arranged on the bottom plate 21 close to the heating box 41, the first moving assembly 7 comprises a first cylinder 71 arranged on the base 1, a first push block 72 connected with a piston rod of the first cylinder 71, and a first connecting block 73 arranged on the first push block 72, and the first connecting block 73 is fixedly connected with the cooling box 31; the second moving assembly 8 comprises a second cylinder 81 arranged on the base 1, a second push block 82 connected with a piston rod of the second cylinder 81, and a second connecting block 83 arranged on the second push block 82, wherein the second connecting block 83 is fixedly connected with the heating box 41.
During specific implementation, the device can be connected with an electric control module (such as a PLC controller and the like), and meanwhile, a temperature sensor arranged in the device is connected with an external display (such as a computer and the like) so as to conveniently implement data observation. During operation, a sample-prepared part to be measured is firstly arranged in the rectangular through hole of the vertical plate, the handle is rotated, the push block descends to fix the part to be measured, then the first air cylinder and the second air cylinder are controlled to move, the cooling box and the heating box are pushed to move towards the vertical plate and cling to the vertical plate, then the refrigerating machine is started to convey cold air into the cooling box to enable the cold air to be reduced to an appointed temperature, meanwhile, the heating element is started to enable the temperature of the heating box to be increased to the appointed temperature, and then the heat conductivity coefficient of the part to be measured is measured through a temperature gradient method according to real.
The utility model is provided with the cooling box and the heating box, a sample to be measured is arranged between the heat source and the low-temperature refrigerating device, when the temperature distribution is stable, the temperature data is measured in real time through a plurality of temperature sensors, and the heat conductivity coefficient of the material is calculated according to the parameters of measuring the heat flow and the temperature gradient flowing through the piece to be measured; meanwhile, the arranged first moving assembly and the second moving assembly are matched with the cooling box and the sealing ring at the opening of the heating box, so that the influence caused by the temperature difference of the environment can be effectively prevented, the measured data is more accurate, the labor intensity of workers is reduced, and the measuring efficiency is improved.
In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, "plurality" or "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the scope of the included claims.
Claims (8)
1. The heat conductivity coefficient testing device is characterized by comprising a base (1), a bottom plate (21) arranged on the base (1), a refrigerating machine (32) which is arranged on the left side of the upper end face of the bottom plate (21) and close to the end part and used for simulating a low-temperature environment, and a cooling box (31) arranged on the right side of the refrigerating machine, wherein the refrigerating machine (32) is connected with the cooling box (31) through a gas pipe (33), a clamping component (5) used for clamping a to-be-tested piece is arranged on the right side of the cooling box (31), a heating box (41) used for simulating a high-temperature environment is arranged on the right side of the clamping component (5), the side, facing the clamping component (5), of the cooling box (31) is an opening, and the side, facing the clamping component (5), of the heating box (; be provided with guide rail (22) on bottom plate (21), cooler bin (31), heating cabinet (41) all with guide rail (22) movably connected, clamping subassembly (5) and bottom plate fixed connection, the position that is close to refrigerator (32) on bottom plate (21) is provided with and is used for driving first removal subassembly (7) that the cooler bin removed along the guide rail, the position that is close to heating cabinet (41) on bottom plate (21) is provided with and is used for driving second removal subassembly (8) that the heating cabinet removed along the guide rail.
2. A thermal conductivity testing device according to claim 1, wherein the first moving assembly (7) comprises a first cylinder (71) disposed on the base (1), a first pushing block (72) connected to a piston rod of the first cylinder (71), and a first connecting block (73) disposed on the first pushing block (72), the first connecting block (73) being fixedly connected to the cooling box (31); the second moving assembly (8) comprises a second air cylinder (81) arranged on the base (1), a second push block (82) connected with a piston rod of the second air cylinder (81), and a second connecting block (83) arranged on the second push block (82), wherein the second connecting block (83) is fixedly connected with the heating box (41).
3. A thermal conductivity measuring apparatus according to claim 1, wherein the heating box (41) is provided with heating means (42) for heating air on its inner wall.
4. A thermal conductivity testing device according to claim 3, wherein said heating element (42) is a heating tube.
5. A thermal conductivity testing device according to claim 1, wherein a plurality of temperature sensors (61) are provided in both the cooling box (31) and the heating box (41).
6. A thermal conductivity testing device according to claim 1, wherein the openings of the cooling box (31) and the heating box (41) are provided with sealing rings (62) for sealing.
7. A thermal conductivity testing device according to claim 1, wherein the side of the top of the cooling box (31) away from the opening and the side of the heating box (41) away from the opening are provided with a plurality of ventilation holes (63) for ventilation.
8. The heat conductivity coefficient testing device according to claim 1, wherein the clamping assembly (5) comprises a vertical plate (51) arranged on the bottom plate (21), and a threaded sleeve (53) arranged on the vertical plate (51), a rectangular through hole (52) is formed in the vertical plate (51), a rectangular cavity is formed in the vertical plate (51) and located above the rectangular through hole (52), a push block (56) is movably arranged in the cavity, a screw rod (54) penetrates through the threaded sleeve (53) to be rotatably connected with the push block (56), and a handle (55) is arranged at the top of the screw rod (54).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921527607.XU CN210604475U (en) | 2019-09-16 | 2019-09-16 | Heat conductivity coefficient testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921527607.XU CN210604475U (en) | 2019-09-16 | 2019-09-16 | Heat conductivity coefficient testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210604475U true CN210604475U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921527607.XU Active CN210604475U (en) | 2019-09-16 | 2019-09-16 | Heat conductivity coefficient testing device |
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| CN (1) | CN210604475U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924339A (en) * | 2021-02-05 | 2021-06-08 | 石家庄铁道大学 | Heat conductivity coefficient measuring device suitable for coarse-grained soil |
-
2019
- 2019-09-16 CN CN201921527607.XU patent/CN210604475U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924339A (en) * | 2021-02-05 | 2021-06-08 | 石家庄铁道大学 | Heat conductivity coefficient measuring device suitable for coarse-grained soil |
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